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LTC4089-3 - USB Power Manager

Description

The LTC®4089-3 is a USB power manager plus high voltage Li-Ion battery charger.

This device controls the total current used by the USB peripheral for operation and battery charging.

Features

  • nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V External Supply nn High Efficiency 1.2A Charger from 6V to 36V Input with Adaptive Output Control nn 3.95V Float Voltage Improves Battery Lifespan and High Temperature Safety Margin nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215m Internal Ideal Diode plus Optional External Ideal Diode Controller Provides Low Loss Power Path When External Supply/USB Not Present nn Constant-Current/Cons.

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Datasheet preview – LTC4089-3

Datasheet Details

Part number LTC4089-3
Manufacturer Linear
File Size 1.13 MB
Description USB Power Manager
Datasheet download datasheet LTC4089-3 Datasheet
Additional preview pages of the LTC4089-3 datasheet.

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Full PDF Text Transcription

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LTC4089-3 USB Power Manager with High Voltage Switching Charger Features nn Seamless Transition Between Power Sources: Li-Ion Battery, USB, and 6V to 36V External Supply nn High Efficiency 1.2A Charger from 6V to 36V Input with Adaptive Output Control nn 3.95V Float Voltage Improves Battery Lifespan and High Temperature Safety Margin nn Load Dependent Charging from USB Input Guarantees Current Compliance nn 215m Internal Ideal Diode plus Optional External Ideal Diode Controller Provides Low Loss Power Path When External Supply/USB Not Present nn Constant-Current/Constant-Voltage Operation with Thermal Feedback to Maximize Charging Rate without Risk of Overheating nn Selectable 100% or 20% Current Limit (e.g., 500mA/100mA) from USB Input nn Preset 3.95V Charge Voltage with ±0.
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